i had a similar problem recently. the only way i could find around it was to create a class that extends the class with the problematic method in question and create a new method that delegates to the method you actually want to call. i would love to hear a better solution...
On Fri, Oct 15, 2010 at 1:49 PM, Darren Clarke <dar...@redaranj.com> wrote: > I've been using Clojure 1.2 and appengine-clj for a project on > AppEngine and two days ago it stopped working after the Google team > released some newly refactored code to production. Short discussion of > this problem on the AppEngine-Java discussion group is here: > > http://code.google.com/appengine/forum/java-forum.html?place=topic%2Fgoogle-appengine-java%2FSzrdYDTwkYk%2Fdiscussion > > I'm trying to figure out what I can patch (either in appengine-clj or > Clojure) to get up and running again. In short, it looks like Google > moved a method into an abstract superclass and now Clojure throws this > error whenever I try to access a datastore transaction: > > java.lang.IllegalArgumentException: Can't call public method of non- > public class: public com.google.appengine.api.datastore.Transaction > com.google.appengine.api.datastore.BaseDatastoreService.getCurrentTransaction(com.google.appengine.api.datastore.Transaction) > at clojure.lang.Reflector.invokeMatchingMethod(Reflector.java:85) > at clojure.lang.Reflector.invokeInstanceMethod(Reflector.java:28) > > Questions: > > 1. Is there any sort of type hinting or other trick I could add to > appengine-clj to avoid this problem? > > 2. Is this related to these two bugs in Assembla?: > > http://www.assembla.com/spaces/clojure/tickets/259-clojure-lang-reflector-invokematchingmethod-is-not-complete-(rejects-pontentially-valid-method-in--- > > http://www.assembla.com/spaces/clojure/tickets/126-abstract-superclass-with-non-public-accessibility > (AppEngine runs on Java 6, BTW) > > > > Full stacktrace: > > java.lang.IllegalArgumentException: Can't call public method of non- > public class: public com.google.appengine.api.datastore.Transaction > com.google.appengine.api.datastore.BaseDatastoreService.getCurrentTransaction(com.google.appengine.api.datastore.Transaction) > at clojure.lang.Reflector.invokeMatchingMethod(Reflector.java:85) > at clojure.lang.Reflector.invokeInstanceMethod(Reflector.java:28) > at appengine.datastore.service$current_transaction.invoke(service.clj: > 72) > at appengine.datastore.service$put_entity.invoke(service.clj:131) > at appengine.datastore.service$fn__176.invoke(service.clj:149) > at appengine.datastore.service$fn__136$G__116__141.invoke(service.clj: > 10) > at com.redaranj.ledes.service.servlet > $fn__1902$fn__1903.invoke(servlet.clj:17) > at compojure.core$routes$fn__1706$fn__1707.invoke(core.clj:72) > at clojure.core$some.invokeStatic(core.clj:2297) > at compojure.core$routes$fn__1706.invoke(core.clj:71) > at ring.middleware.params$wrap_params$fn__1468.invoke(params.clj:77) > at ring.middleware.cookies$wrap_cookies$fn__1559.invoke(cookies.clj: > 123) > at ring.util.servlet$make_service_method$fn__1881.invoke(servlet.clj: > 117) > at com.redaranj.ledes.service.servlet$_service.invoke(servlet.clj:19) > at com.redaranj.ledes.service.servlet.service(Unknown Source) > at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: > 511) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1166) > at > com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java: > 97) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1157) > at > com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java: > 35) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1157) > at > com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java: > 43) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1157) > at > org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java: > 388) > at > org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java: > 216) > at > org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java: > 182) > at > org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java: > 765) > at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: > 418) > at > com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java: > 238) > at > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: > 152) > at org.mortbay.jetty.Server.handle(Server.java:326) > at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: > 542) > at org.mortbay.jetty.HttpConnection > $RequestHandler.headerComplete(HttpConnection.java:923) > at > com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java: > 76) > at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) > at > com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java: > 135) > at > com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java: > 261) > at com.google.apphosting.base.RuntimePb$EvaluationRuntime > $6.handleBlockingRequest(RuntimePb.java:8483) > at com.google.apphosting.base.RuntimePb$EvaluationRuntime > $6.handleBlockingRequest(RuntimePb.java:8481) > at > com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingApplicationHandler.java: > 24) > at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java: > 418) > at com.google.net.rpc.impl.Server$RpcTask.runInContext(Server.java: > 572) > at com.google.tracing.TraceContext$TraceContextRunnable > $1.run(TraceContext.java:448) > at com.google.tracing.TraceContext.runInContext(TraceContext.java: > 688) > at com.google.tracing.TraceContext > $AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java: > 326) > at com.google.tracing.TraceContext > $AbstractTraceContextCallback.runInInheritedContext(TraceContext.java: > 318) > at com.google.tracing.TraceContext > $TraceContextRunnable.run(TraceContext.java:446) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java: > 1110) > at java.util.concurrent.ThreadPoolExecutor > $Worker.run(ThreadPoolExecutor.java:603) > at 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